if i'm not mistaken, i think some realtime solutions like tenasys,sybera qnos etc make s special driver-thing that makes winxp run in a virtual machine.the...
There are two issues here; the software, and the hardware. Running real-time on a PC must deal with PC design features that are extremely unfriendly to...
thats correct peter, also,there is no evidence that PRO cnc machines on win xp don't have a hardware pulse generator hidden,controlled by a winxp+tenasys front...
I have a gecko 320 drive hooked up and everything seems to be running pretty well. The encoder test works perfect, and in the motor tuning screen in mach I can...
Most I’ve played with like Deckels and the like have their own DSP motion control cards. Cost about £4k per axis when they go wrong. And as you say Wayne,...
... Depends on what you are hooking the scope ground to at the Gecko. Unless the voltmeter is hooked to AC power and the input neg is ref to AC ground it...
Hey everyone, I've started building the table and would like to pick your brains for advice on which gecko and steppers to choose. The table is 6ftx5ft. I'm...
channel 1 on the test point channel 2 on the direction input trigger to normal trigger source to channel 2 trigger edge positive clockwise change in direction...
I use NEMA34 640oz steppers on my 5X5 tables. Same drive system as your table. Heres an ebay item for some 660oz with drives. Item number: 180248046439 To:...
... Careful there. The ground connection on a scope probe is not high impedance. One way to see how different the scope ground is from the circuit under test...
I'm planning to drive my first cnc machine with 3 G203v or G212 but it's not the problem yet. I've read the "step-motor_basics.pdf" document and I'm not shure...
Hi GB, Here is my try: In half-winding configuration the two coils are set parallel. So they have both the same voltage. 1.2 Volts The current is splitted over...
Thanks a lot, but I didn't realy understood motors configurations like you. Half-winding : on each phase, half of a coil * full-winding : on each phase, full...
Hi GB, I thought the example was based on the 8-wired motor. In that case my explanation is valid. But indeed for 6-wired motors there are no parallel coils....
Hi GB, About the only way to get parallel windings is with 8-wire motors. 6-wire motors are only capable of series or half-winding. 4-wire motors give you no...
I suggest you can pretty much ignore winding resistance and winding voltage. There are only two electrical specifications that matter: 1) Rated motor phase...
Mariss; I have a question that is somewhat related. Why square stepper motors? The rotor inside is round so what is the significance that the outside is ...
... Jacob Tal of Galil fame published a few books on the subject. Outside of those, most of the technical literature is not easy reading - more theory than...
... It is essentially electronic gearing. This is all built into EMC2, now, so you specify the thread pitch and length in the G-code, and it reverses the...
Two reasons: 1) A square stepper's magnetics are designed to have torque equal the vector sum of its winding currents. If those currents are sine and cosine,...
Thanks Mariss; The essential question I was curious about was; "why square". Couldn't the same characteristics be obtained in a round design with the savings...
The NEMA standard defines the mounting flange dimensions and dictates the motor must not protrude beyond those dimensions. The rare earth magnets are in the...
Thanks, that makes sense. It is an effort to pack a little more power into a given space. Pete. ... From: Mariss Freimanis To: geckodrive@yahoogroups.com ...
Hi Folks, I'm new to this group so please forgive me if I'm asking something that has already been asked previously. I just bought a heavily modded Gerber...
... 1. Geckos won't work with 5 wire motors. They are bipolar motor drivers and 4, 6 or 8 wire motors can be hooked either way....5's cannnot. 2. The new...
OOH! I missed the 5-wire bit. Good catch Tom!
You will have a hard time finding drivers for those 5-wire motors(unless they are really 4-wires from the...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
